linux-kernel - [PATCH 5.4 074/214] drm/xen: fix passing zero to PTR

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Date:   Tue,  1 Sep 2020 17:09:14 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Ding Xiang <dingxiang@...s.chinamobile.com>,
        Oleksandr Andrushchenko <oleksandr_andrushchenko@...m.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 074/214] drm/xen: fix passing zero to PTR_ERR warning

From: Ding Xiang <dingxiang@...s.chinamobile.com>

[ Upstream commit 4c1cb04e0e7ac4ba1ef5457929ef9b5671d9eed3 ]

Fix a static code checker warning:
    drivers/gpu/drm/xen/xen_drm_front.c:404 xen_drm_drv_dumb_create()
    warn: passing zero to 'PTR_ERR'

Signed-off-by: Ding Xiang <dingxiang@...s.chinamobile.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@...m.com>
Signed-off-by: Daniel Vetter <daniel.vetter@...ll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1585562347-30214-1-git-send-email-dingxiang@cmss.chinamobile.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/xen/xen_drm_front.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c
index 4be49c1aef518..374142018171c 100644
--- a/drivers/gpu/drm/xen/xen_drm_front.c
+++ b/drivers/gpu/drm/xen/xen_drm_front.c
@@ -401,7 +401,7 @@ static int xen_drm_drv_dumb_create(struct drm_file *filp,
 
 	obj = xen_drm_front_gem_create(dev, args->size);
 	if (IS_ERR_OR_NULL(obj)) {
-		ret = PTR_ERR(obj);
+		ret = PTR_ERR_OR_ZERO(obj);
 		goto fail;
 	}
 
-- 
2.25.1